battle of the atlantic

https://en.wikipedia.org/wiki/Operation_Berlin_(Atlantic) This is the Kriegsmarine operation in question. In essence, what is the best case scenario for the Scharnhorst and Gneisenau in this surface raid, and what changes would be needed to ensure this scenario? And what effect could this have...

During Operation JUNO in the course of the 1940 Norwegian campaign, the German battleships/battlecruisers Scharnhorst and Gneisenau encountered HMS Glorious and her two escort destroyers, Ardent and Acasta. This did not go well for the British. HOWEVER: The resulting events meant that...

September 17th 1938 – Britain – Disaster at Hendon After the Anschluss in March of 1938 there may have been hopes that Hitler might be satisfied with his gains and concentrate on consolidating them, at least for a year or two. There was a brief panic about the possibility of a German attack on...

This is not that complicated. As many of us know, IOTL HMS Rodney contributed largely to the sinking of the Bismarck. Now try to make it so that she does in Bismarck's sister as well. Timing, context and method are up to your choosing. Nothing ASB is allowed though. Bonus points if Rodney...

Second of the Scharnhorst class, Gneisenau was an unlucky ship, meeting her demise as an active combat ship due to an unlucky bomb hit in February 1942, after the Channel Dash. However, perusing her Wikipedia page, this comes up...

I've read a lot of threads about how the Kriegsmarine of the 2nd World War could have performed better in the Atlantic, and all of them end with the unanimous conclusion: "They're still screwed". So this thread will ask the complete opposite: what if the Reich's leadership took one look at the...

Firing from the blimp on a submarine that you spotted with radar in the dark night, what sort of gun can you penetrate it with? And I mean punch holes in the pressure hull that prevent it from diving. 20mm Oerlikon? 25mm (e.g. Hotchkiss, it's terrible as AA, but might be adequate for...

I seem to remember hearing that I'd the U-boats had been able to sink 750,000 tons of shipping per month, for 24 months, Britain would be forced to surrender. Is this accurate? I haven't found figures for the amount of allied shpiping at the start of the war, or numbers for allied shupping...